- Short answer
- Bluetooth or app permissions are off, the reader is paired elsewhere, a Tap & Chip due an update is under 50%, or a Wi-Fi reader has network trouble.
- Tap & Chip
- If Bluetooth keeps failing, Shopify calls the Hub over USB the most reliable setup on iPad and Android.
- WisePad 3
- Its first pairing starts an automatic update, and that update needs at least 50% charge.
- POS Terminal
- Reaches your POS device only over Wi-Fi and needs Shopify POS 8.16 or later.
- Factory reset
- Last resort on POS Terminal: it clears all apps and data, so you set it up again.
- Daily drop
- A Tap & Chip disconnects every 24 hours for a security check, then reconnects by itself.
What should you check first on a Shopify card reader?
The POS app can't find the reader, pairing fails, or a reader that worked yesterday no longer shows as connected. Which reader you have decides how it reaches your POS device:
- Tap & Chip (sold in the US only): Bluetooth, the Hub over USB, or USB-C on Android.
- WisePad 3: Bluetooth, the Hub over USB, or USB-C on Android.
- POS Terminal: Wi-Fi to the POS device.
- Verifone Victa Mobile: Wi-Fi, or Ethernet through its optional dock; it has no cellular data.
Next, run the checks that apply to most readers:
- Force close Shopify POS and reopen it.
- Open the Connectivity menu in POS to see whether the device is ready to sell and what to fix next.
- On a Tap & Chip, WisePad 3 or Victa Mobile, unpair the reader from any other device: each pairs with only one at a time.
- Update the device's operating system first, then Shopify POS — each POS version is supported for about 180 days after release. POS no longer supports iOS 14 or lower, and devices below Android 13 or iOS 18 must be updated by June 6, 2027 to keep using it.
How do you fix a Tap & Chip or WisePad 3 that won't pair?
A Tap & Chip that needs a software update won't connect to Shopify POS with less than 50% battery. A WisePad 3 needs the same 50% for its over-the-air update, and its first pairing starts an automatic update.
Either reader might also have trouble pairing below 50% battery, even when plugged in, so Shopify says to charge it above 50% before you try again. Press and release a Tap & Chip's power button to see its battery level on the four status lights.
Then work through Shopify's Tap & Chip steps:
- Turn on Bluetooth on the POS device and allow Shopify POS to use Bluetooth in the device settings.
- Check the app's permissions: Location set to When using this app and Camera on, on iOS and Android; on iOS, also Local Network, Background App Refresh and Allow Cross-Website Tracking. Without Location, POS can't run the reader's security checks.
- Forget the reader in POS and in the device's Bluetooth settings, turn Bluetooth off, and switch the device off for at least 3 minutes.
- Reset the reader: push a paperclip into its pinhole and wait for the status lights to blink 4 times.
- Turn Bluetooth back on without pairing in the device settings, then pair the reader from Shopify POS.
- If an update started from POS freezes or fails, pair the reader with a different device and try again.
If Bluetooth keeps failing, Shopify calls the Hub over USB the most reliable setup for a Tap & Chip or WisePad 3; it works with iPad and Android.
On a WisePad 3, check the same Bluetooth permission, undock and re-dock the tablet if it sits in a Retail Stand, and do a pinhole reset by holding the reset button for 5 seconds.
The Tap & Chip and WisePad 3 pages we read on October 8, 2026 give no Bluetooth range in feet or meters, only that each reader connects automatically when both devices are on and "in range".
How do you fix a POS Terminal or Victa Mobile that won't connect?
Shopify's help pages describe no Bluetooth connection for either reader, so the fixes are about the network:
POS Terminal connects to your local network over Wi-Fi or Ethernet, depending on which model you're using, but it can only connect to your POS device over Wi-Fi.
For a POS Terminal:
- If the terminal and the tablet both use Wi-Fi, put them on the same Wi-Fi network.
- Run Shopify POS 8.16 or later, and on iOS give the app Local Network permission.
- If the connection drops and no QR code shows, swipe from right to left on the terminal to open its settings panel and choose Reset connection to POS.
- Test both devices on another network, such as a smartphone hotspot.
- As a last resort, undock the terminal and hold all 3 buttons for 15 seconds to force a factory reset — it clears all apps and data, so you set it up again.
For a Victa Mobile, confirm Wi-Fi with internet access on 2.4 or 5 GHz. A network missing from its list may require Protected Management Frames, including WPA3-only networks; guest or captive-portal Wi-Fi can block registration or pairing. If Shopify POS runs on a separate phone or tablet with the Victa Mobile docked in countertop mode, connect both to the same local network.
Why does a connected reader keep dropping off?
Several drops are documented behaviour rather than faults:
- A Tap & Chip runs a security check every 24 hours, disconnecting from POS, restarting and reconnecting by itself.
- A Tap & Chip goes to sleep after 8 hours of inactivity; press the power button to wake it.
- Holding the Tap & Chip power button for 4 seconds or more resets its Bluetooth pairing (not when it's connected by USB-C cable); pair it again.
- A WisePad 3 running on battery shuts off after 10 hours of inactivity.
- A POS Terminal unpairs when the POS device locks or reboots, or Shopify POS is closed on it.
When is the reader itself the problem?
Tamper signals end troubleshooting: a Tap & Chip whose first and fourth lights flash can no longer be used, and a WisePad 3 showing a Tamper Detected screen has to be replaced. Stop using a Victa Mobile with any sign of tampering and contact Shopify Support. See how to get a tampered reader replaced.
An older reader may be out of support: Shopify no longer sells or supports the Chip & Swipe; it no longer sells the Chipper 2X BT but still supports it for stores based in the United States. Check whether your old card reader works with Shopify POS.
If nothing works, open This device > View diagnostics in Shopify POS, run a test transaction, send a report and contact Shopify Support. For whether a faulty reader is covered, see what the Shopify POS hardware warranty covers.
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